Use "unkept" in a sentence

1. Use an unkept promise as an opening to

2. Despite his unkept beard, however, he was a meticulous dresser, and was often seen strutting down the limestone streets of Agen with his walnut walking stick

3. His eyes inflamed and swollen, he stared up into the man’s kind but unkept face

4. inconstancy, their double dealing, their broken promises, their unkept pledges, and in short the want of reflection they show in fixing their affections and inclinations